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soc: arm: add ARM MPU node info and fixup for Cortex-M7 SoCs

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Unlike Cortex-M3 and Cortex-M4, in Cortex-M7 the number of
MPU regions may vary based on the implementation. This commit
adds a DTS node for the ARM MPU peripheral in the device tree
of Cortex-M7 SoCs and updates the fixup files, so we may extract
the number of MPU regions at build time. SoCs:
- nxp_rt
- same70
- stm32f7

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2019-05-14 09:00:10 +02:00 • committed by Kumar Gala
commit 75f681b0d9
6 changed files with 30 additions and 0 deletions
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8
dts/arm/atmel/same70.dtsi
View file

@ -18,6 +18,14 @@
device_type = "cpu";
compatible = "arm,cortex-m7";
reg = <0>;
#address-cells = <1>;
#size-cells = <1>;
mpu: mpu@e000ed90 {
compatible = "arm,armv7m-mpu";
reg = <0xe000ed90 0x40>;
arm,num-mpu-regions = <16>;
};
};
};

8
dts/arm/nxp/nxp_rt.dtsi
View file

@ -18,6 +18,14 @@
device_type = "cpu";
compatible = "arm,cortex-m7";
reg = <0>;
#address-cells = <1>;
#size-cells = <1>;
mpu: mpu@e000ed90 {
compatible = "arm,armv7m-mpu";
reg = <0xe000ed90 0x40>;
arm,num-mpu-regions = <16>;
};
};
};

8
dts/arm/st/f7/stm32f7.dtsi
View file

@ -19,6 +19,14 @@
device_type = "cpu";
compatible = "arm,cortex-m7";
reg = <0>;
#address-cells = <1>;
#size-cells = <1>;
mpu: mpu@e000ed90 {
compatible = "arm,armv7m-mpu";
reg = <0xe000ed90 0x40>;
arm,num-mpu-regions = <8>;
};
};
};

2
soc/arm/atmel_sam/same70/dts_fixup.h
View file

@ -10,6 +10,8 @@
#define DT_NUM_IRQ_PRIO_BITS DT_ARM_V7M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
#define DT_NUM_MPU_REGIONS DT_ARM_ARMV7M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
#define DT_GPIO_SAM_PORTA_LABEL DT_ATMEL_SAM_GPIO_400E0E00_LABEL
#define DT_GPIO_SAM_PORTA_BASE_ADDRESS DT_ATMEL_SAM_GPIO_400E0E00_BASE_ADDRESS
#define DT_GPIO_SAM_PORTA_IRQ DT_ATMEL_SAM_GPIO_400E0E00_IRQ_0

2
soc/arm/nxp_imx/rt/dts_fixup.h
View file

@ -8,6 +8,8 @@
#define DT_NUM_IRQ_PRIO_BITS DT_ARM_V7M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
#define DT_NUM_MPU_REGIONS DT_ARM_ARMV7M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
#define DT_MCUX_CCM_BASE_ADDRESS DT_NXP_IMX_CCM_400FC000_BASE_ADDRESS
#define DT_MCUX_CCM_NAME DT_NXP_IMX_CCM_400FC000_LABEL

2
soc/arm/st_stm32/stm32f7/dts_fixup.h
View file

@ -4,6 +4,8 @@
#define DT_NUM_IRQ_PRIO_BITS DT_ARM_V7M_NVIC_E000E100_ARM_NUM_IRQ_PRIORITY_BITS
#define DT_NUM_MPU_REGIONS DT_ARM_ARMV7M_MPU_E000ED90_ARM_NUM_MPU_REGIONS
#define DT_GPIO_STM32_GPIOA_BASE_ADDRESS DT_ST_STM32_GPIO_40020000_BASE_ADDRESS
#define DT_GPIO_STM32_GPIOA_CLOCK_BITS_0 DT_ST_STM32_GPIO_40020000_CLOCK_BITS_0
#define DT_GPIO_STM32_GPIOA_CLOCK_BUS_0 DT_ST_STM32_GPIO_40020000_CLOCK_BUS_0